A main brush structure for a sweeper
By installing dust-blocking strips and lifting components around the main brush of the sweeper, the problem of dust escaping is solved, achieving environmental protection and stable movement during the sweeping process, and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANAN VEHICLE IND GRP CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
The dust generated by existing sweepers during the sweeping process is easily dispersed, causing secondary environmental pollution, and the main brush lacks effective dust prevention measures.
Dust baffles are installed around the main brush structure of the sweeper and equipped with lifting components. The dust baffles automatically lift when they encounter obstacles to ensure the stable movement of the main brush. At the same time, the dust cover intercepts dust in the dust collection bin.
It effectively intercepts dust during the main brush cleaning process, preventing it from escaping and ensuring environmental protection during cleaning. It also allows for easy crossing of obstacles, ensuring cleaning stability and ease of operation.
Smart Images

Figure CN224431321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sweeper technology, specifically to a main brush structure for a sweeper. Background Technology
[0002] A sweeper truck is an integrated garbage cleaning vehicle that combines sweeping and vacuuming. It has the advantages of high work efficiency, low cleaning cost, good cleaning effect, high safety performance, and high economic return. It has been widely used in the cleaning of roads in cities of all sizes.
[0003] However, a lot of dust is generated during the cleaning process. It is necessary to avoid secondary environmental pollution caused by the dust during the cleaning process. Currently, sweepers only use dust removal fans or water spraying to remove dust. This dust removal effect is not good and will also cause excessive energy consumption. Moreover, the main brush does not have any dust prevention measures, and some dust will escape into the environment during the cleaning process, causing secondary pollution. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a main brush structure for a sweeper that can prevent dust generated during the main brush cleaning process from directly escaping into the external environment and causing secondary pollution.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.
[0006] A main brush structure for a sweeper includes a main brush body located at the lower center of the frame, and a dust collection chamber located at the rear of the frame. A front dust cover is provided on the front side of the main brush body, with the top of the front dust cover positioned on the bottom surface of the frame. A rear dust cover is provided on the rear side of the main brush body, positioned between the frame and the dust collection chamber. Dust-blocking strips are provided on the bottom of the four sides of the main brush body, forming a square enclosure area to intercept dust generated by the main brush body. The front dust-blocking strips are connected to a lifting component that ensures stable movement of the main brush body when encountering obstacles.
[0007] The main brush structure of the sweeper described above includes a lifting assembly comprising a dust baffle rod connected to the dust baffle strip on the front side of the main brush body. The other end of the dust baffle rod is hinged to a cam plate on the right side of the rotating shaft. The rotating shaft is mounted on the frame via a bearing. The cam plate on the left side of the rotating shaft is hinged to a middle connecting rod. The other end of the middle connecting rod is hinged to a foot pedal connecting rod. A foot pedal for raising the dust baffle strip on the front side of the main brush is provided at the top of the foot pedal connecting rod.
[0008] In the above-mentioned main brush structure of a sweeper, the two ends of the intermediate connecting rod are respectively provided with springs that automatically reset the dust baffle strip on the front side of the main brush body after the foot pedal is raised by releasing the dust baffle strip on the front side of the main brush body.
[0009] In the above-mentioned main brush structure of a sweeper, the front dust baffle is located at the bottom of the front dust cover, the rear dust baffle is located at the bottom of the rear dust cover, and the left and right dust baffles are respectively located on the frame.
[0010] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.
[0011] This utility model provides a main brush structure for a sweeper. By setting dust-blocking strips around the bottom of the main brush, dust can be effectively intercepted during the sweeping process, solving the problem of dust escaping and causing secondary environmental pollution due to the lack of protection for the main brush during the sweeping process. To ensure the stable movement of the sweeper, when encountering obstacles, the dust-blocking strips on the front of the main brush are lifted by a lifting component, making it easier for the main brush to cross obstacles and sweep, which is convenient to operate. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the specific structure of this utility model.
[0013] The components are: 4. Main brush body, 7. Main brush front dust baffle raising foot pedal, 8. Foot pedal linkage, 9. Middle linkage, 10. Rotary shaft, 11. Dust baffle linkage, 12. Dust baffle, 24. Cam plate. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] A main brush structure for a sweeper, such as Figure 1 As shown, it includes a main brush body 4 located at the lower middle part of the frame, and a dust collection bin at the rear of the frame. The main brush body 4 collects road debris from under the vehicle into the dust collection bin.
[0016] Dust-blocking strips 12 are provided on the front, back, left, and right sides of the main brush body 4. These strips can concentrate dust in the area enclosed by the dust-blocking strips when the main brush is cleaning, thus preventing a large amount of dust from floating around.
[0017] The front dust baffle 12 is connected to the lifting assembly, which can prevent the vehicle from encountering obstacles and being unable to pass when moving.
[0018] The lifting assembly includes a dust baffle link 11 connected to the dust baffle 12 on the front side of the main brush. The other end of the dust baffle link 11 is hinged to the cam plate 24 on the right side of the rotating shaft 10. The rotating shaft 10 is mounted on the frame via bearings. The cam plate 24 on the left side of the rotating shaft 10 is hinged to the intermediate link 9. The other end of the intermediate link 9 is hinged to the foot pedal link 8. The top of the foot pedal link 8 is equipped with a main brush front dust baffle lifting foot pedal 7. By stepping on the main brush front dust baffle lifting foot pedal 7, and with the cooperation of the foot pedal link 8, the intermediate link 9, the cam plate 24, the rotating shaft 10, and the dust baffle link 11, the main brush front dust baffle 12 is lifted, allowing the frame to pass stably when encountering obstacles.
[0019] Springs are installed at both ends of the middle connecting rod 9, which can automatically reset the dust baffle 12 on the front side of the main brush after the foot pedal is raised by releasing the dust baffle strip on the front side of the main brush.
[0020] The main brush body 4 has a front dust cover on the front side, and the top of the front dust cover is set on the bottom surface of the frame. The main brush body 4 has a rear dust cover on the rear side, and the rear dust cover is set between the frame and the dust collection chamber, so that the main brush body 4 can sweep road debris into the dust collection chamber.
[0021] The front dust baffle is located at the bottom of the front dust cover, the rear dust baffle is located at the bottom of the rear dust cover, and the left and right dust baffles are respectively installed on the frame. The dust baffles are used to enclose and prevent dust from spilling out from the bottom.
[0022] When in use, if the frame encounters a relatively high obstacle during movement, you can step down on the dust baffle on the front of the main brush to raise the foot pedal. With the cooperation of the foot pedal linkage, the middle linkage, the cam plate, the pivot, and the dust baffle linkage, the dust baffle on the front of the main brush will be raised to facilitate the passage of the main brush and the frame. After the frame crosses the obstacle, release the foot pedal to raise the dust baffle on the front of the main brush. Under the action of the spring, the dust baffle on the front of the main brush will automatically return to its original position.
[0023] This utility model provides a main brush structure for a sweeper. By setting dust-blocking strips around the bottom of the main brush, dust can be effectively intercepted during the sweeping process, solving the problem of dust escaping and causing secondary environmental pollution due to the lack of protection for the main brush during the sweeping process. To ensure the stable movement of the sweeper, when encountering obstacles, the dust-blocking strips on the front of the main brush are lifted by a lifting component, making it easier for the main brush to cross obstacles and sweep, which is convenient to operate.
Claims
1. A main brush structure of a sweeping vehicle, characterized in that: The system includes a main brush body (4) located below the middle of the frame, and a dust collection chamber located at the rear of the frame. A front dust cover is provided on the front side of the main brush body (4), with the top of the front dust cover located on the bottom surface of the frame. A rear dust cover is provided on the rear side of the main brush body (4), and the rear dust cover is located between the frame and the dust collection chamber. Dust-blocking strips (12) are provided on the bottom of the front, rear, left, and right sides of the main brush body (4), and the four dust-blocking strips (12) form a square enclosure area to intercept the dust generated by the main brush body (4). The front dust-blocking strip (12) is connected to a lifting component that ensures the stable movement of the main brush body when it encounters obstacles.
2. The main brush structure of a sweeper according to claim 1, characterized in that: The lifting assembly includes a dust baffle rod (11) connected to the dust baffle rod (12) on the front side of the main brush body. The other end of the dust baffle rod (11) is hinged to the cam plate (24) on the right side of the rotating shaft (10). The rotating shaft (10) is mounted on the frame through a bearing. The cam plate (24) on the left side of the rotating shaft (10) is hinged to the intermediate connecting rod (9). The other end of the intermediate connecting rod (9) is hinged to the foot pedal connecting rod (8). The top of the foot pedal connecting rod (8) is provided with a main brush front dust baffle lifting foot pedal (7).
3. The main brush structure of a sweeper according to claim 2, characterized in that: The two ends of the intermediate connecting rod (9) are respectively provided with springs that automatically reset the dust baffle (12) on the front side of the main brush body after the foot pedal is raised by releasing the dust baffle on the front side of the main brush body.
4. The main brush structure of a sweeper according to claim 1, characterized in that: The front dust baffle (12) is located at the bottom of the front dust cover, the rear dust baffle (12) is located at the bottom of the rear dust cover, and the left and right dust baffles (12) are respectively located on the vehicle frame.